The Human Eye
- Thread starter BarryG
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If you are talking about FieldOfView, Its around 50mm for a single human eye, (45.7mm I think was the exact figure)
Hence why the 50mm lens was standard for so long as giving such a close FOV compared to the naked human eye.
Hadley
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I think so if I'm recalling what I was told correctly.
However I definatly had a conversation with a respected photographer, and he said that the human can see about 5mm but only focus on 50mm
joescrivens
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on a full frame camera its about 50mm
I was watching a program on TV last night . . . or was it Sunday???
Ah well, they re created a picture shoot taken in around 1920, wooden camera, single glass type slide, bellows and all.
The point that struck me was the focus on the lens, they did not worry like we do about edge focus, accepting the human eyes point of focus is limited. They used the softer outer focus of the lens to bring the eye to the center of the picture and therefore the subject of interest.
Of course, we frame differently these days . . . should we?
CJS
Ah well, they re created a picture shoot taken in around 1920, wooden camera, single glass type slide, bellows and all.
The point that struck me was the focus on the lens, they did not worry like we do about edge focus, accepting the human eyes point of focus is limited. They used the softer outer focus of the lens to bring the eye to the center of the picture and therefore the subject of interest.
Of course, we frame differently these days . . . should we?
CJS
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HoppyUK
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You can't really compare eyes and cameras. We actually 'visualise' with our brains but in technical terms the human eye is about 20mm f/2-8, variable ISO, with a field of view anything between 180 degrees and about 2 degrees of active vision. We build up a picture by constantly scanning the moving scene in 3D.
None of which has much in common with a still 2D image made with a 50mm lens. The only common feature there is that with a 50mm lens on a full frame camera, you 'tend' to shoot people/things from a distance that gives fairly natural looking perspective, but that's about it.
None of which has much in common with a still 2D image made with a 50mm lens. The only common feature there is that with a 50mm lens on a full frame camera, you 'tend' to shoot people/things from a distance that gives fairly natural looking perspective, but that's about it.
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I have a Sigma 8mm fisheye which gives a full 180° FoV.
hollis_f
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I think I have a back focus problem with mine
Got that as well. Also, the MFD seems to be varying with time.
Sigma do a 4.5mm f/2.8
pics: http://www.lensesforhire.com/gallery/Sigma_4.5mm_f2.8_EX_DC_HSM_Circular_Fisheye/index.html